📺 ExtUI pause state response (#22164)

Marlin/src/gcode/gcode.h

     static uint8_t host_keepalive_interval;
 
     static void host_keepalive();
+    static inline bool host_keepalive_is_paused() { return busy_state >= PAUSED_FOR_USER; }
 
     #define KEEPALIVE_STATE(N) REMEMBER(_KA_, gcode.busy_state, gcode.N)
   #else

Marlin/src/inc/Conditionals_post.h

  * Advanced Pause - Filament Change
  */
 #if ENABLED(ADVANCED_PAUSE_FEATURE)
-  #if HAS_LCD_MENU || BOTH(EMERGENCY_PARSER, HOST_PROMPT_SUPPORT)
+  #if EITHER(HAS_LCD_MENU, EXTENSIBLE_UI) || BOTH(EMERGENCY_PARSER, HOST_PROMPT_SUPPORT)
     #define M600_PURGE_MORE_RESUMABLE 1
   #endif
   #ifndef FILAMENT_CHANGE_SLOW_LOAD_LENGTH

Marlin/src/lcd/extui/ui_api.cpp

   #include "../../feature/host_actions.h"
 #endif
 
+#if M600_PURGE_MORE_RESUMABLE
+  #include "../../feature/pause.h"
+#endif
+
 namespace ExtUI {
   static struct {
     uint8_t printer_killed : 1;
     return !thermalManager.tooColdToExtrude(extruder - E0);
   }
 
-  GcodeSuite::MarlinBusyState getMachineBusyState() { return TERN0(HOST_KEEPALIVE_FEATURE, GcodeSuite::busy_state); }
+  GcodeSuite::MarlinBusyState getHostKeepaliveState() { return TERN0(HOST_KEEPALIVE_FEATURE, gcode.busy_state); }
+  bool getHostKeepaliveIsPaused() { return TERN0(HOST_KEEPALIVE_FEATURE, gcode.host_keepalive_is_paused()); }
 
   #if HAS_SOFTWARE_ENDSTOPS
     bool getSoftEndstopState() { return soft_endstop._enabled; }
     TERN_(HAS_FAN, thermalManager.zero_fan_speeds());
   }
 
-  bool awaitingUserConfirm() { return TERN0(HAS_RESUME_CONTINUE, wait_for_user); }
+  bool awaitingUserConfirm() {
+    return TERN0(HAS_RESUME_CONTINUE, wait_for_user) || getHostKeepaliveIsPaused();
+  }
   void setUserConfirmed() { TERN_(HAS_RESUME_CONTINUE, wait_for_user = false); }
 
+  #if M600_PURGE_MORE_RESUMABLE
+    void setPauseMenuResponse(PauseMenuResponse response) { pause_menu_response = response; }
+  #endif
+
   void printFile(const char *filename) {
     TERN(SDSUPPORT, card.openAndPrintFile(filename), UNUSED(filename));
   }

Marlin/src/lcd/extui/ui_api.h

 #include "../../inc/MarlinConfig.h"
 #include "../marlinui.h"
 #include "../../gcode/gcode.h"
+#if M600_PURGE_MORE_RESUMABLE
+  #include "../../feature/pause.h"
+#endif
 
 namespace ExtUI {
 
   void injectCommands(char * const);
   bool commandsInQueue();
 
-  GcodeSuite::MarlinBusyState getMachineBusyState();
+  GcodeSuite::MarlinBusyState getHostKeepaliveState();
+  bool getHostKeepaliveIsPaused();
 
   bool isHeaterIdle(const heater_t);
   bool isHeaterIdle(const extruder_t);
   void setFeedrate_mm_s(const feedRate_t);
   void setMinFeedrate_mm_s(const feedRate_t);
   void setMinTravelFeedrate_mm_s(const feedRate_t);
-  void setPrintingAcceleration_mm_s2(const_float_t );
-  void setRetractAcceleration_mm_s2(const_float_t );
-  void setTravelAcceleration_mm_s2(const_float_t );
-  void setFeedrate_percent(const_float_t );
+  void setPrintingAcceleration_mm_s2(const_float_t);
+  void setRetractAcceleration_mm_s2(const_float_t);
+  void setTravelAcceleration_mm_s2(const_float_t);
+  void setFeedrate_percent(const_float_t);
   void setFlow_percent(const int16_t, const extruder_t);
   bool awaitingUserConfirm();
   void setUserConfirmed();
 
+  #if M600_PURGE_MORE_RESUMABLE
+    void setPauseMenuResponse(PauseMenuResponse);
+  #endif
+
   #if ENABLED(LIN_ADVANCE)
     float getLinearAdvance_mm_mm_s(const extruder_t);
     void setLinearAdvance_mm_mm_s(const_float_t, const extruder_t);
 
   #if HAS_JUNCTION_DEVIATION
     float getJunctionDeviation_mm();
-    void setJunctionDeviation_mm(const_float_t );
+    void setJunctionDeviation_mm(const_float_t);
   #else
     float getAxisMaxJerk_mm_s(const axis_t);
     float getAxisMaxJerk_mm_s(const extruder_t);
   #endif
 
   float getZOffset_mm();
-  void setZOffset_mm(const_float_t );
+  void setZOffset_mm(const_float_t);
 
   #if HAS_BED_PROBE
     float getProbeOffset_mm(const axis_t);
     void setAxisBacklash_mm(const_float_t, const axis_t);
 
     float getBacklashCorrection_percent();
-    void setBacklashCorrection_percent(const_float_t );
+    void setBacklashCorrection_percent(const_float_t);
 
     #ifdef BACKLASH_SMOOTHING_MM
       float getBacklashSmoothing_mm();
-      void setBacklashSmoothing_mm(const_float_t );
+      void setBacklashSmoothing_mm(const_float_t);
     #endif
   #endif
 
 
     #if HAS_FILAMENT_RUNOUT_DISTANCE
       float getFilamentRunoutDistance_mm();
-      void setFilamentRunoutDistance_mm(const_float_t );
+      void setFilamentRunoutDistance_mm(const_float_t);
     #endif
   #endif
 
 
     #if DISABLED(CASE_LIGHT_NO_BRIGHTNESS)
       float getCaseLightBrightness_percent();
-      void setCaseLightBrightness_percent(const_float_t );
+      void setCaseLightBrightness_percent(const_float_t);
     #endif
   #endif
 
     float getPIDValues_Ki(const extruder_t);
     float getPIDValues_Kd(const extruder_t);
     void setPIDValues(const_float_t, const_float_t , const_float_t , extruder_t);
-    void startPIDTune(const_float_t, extruder_t);
+    void startPIDTune(const celsius_t, extruder_t);
   #endif
 
   #if ENABLED(PIDTEMPBED)
     float getBedPIDValues_Kp();
     float getBedPIDValues_Ki();
     float getBedPIDValues_Kd();
-    void setBedPIDValues(const_float_t, const_float_t , const_float_t );
-    void startBedPIDTune(const_float_t );
+    void setBedPIDValues(const_float_t, const_float_t , const_float_t);
+    void startBedPIDTune(const celsius_t);
   #endif
 
   /**

Marlin/src/lcd/marlinui.cpp

   }
 #endif
 
+#if BOTH(EXTENSIBLE_UI, ADVANCED_PAUSE_FEATURE)
+
+  void MarlinUI::pause_show_message(
+    const PauseMessage message,
+    const PauseMode mode/*=PAUSE_MODE_SAME*/,
+    const uint8_t extruder/*=active_extruder*/
+  ) {
+    if (mode == PAUSE_MODE_SAME)
+      return;
+    pause_mode = mode;
+    switch (message) {
+      case PAUSE_MESSAGE_PARKING:  ExtUI::onUserConfirmRequired_P(GET_TEXT(MSG_PAUSE_PRINT_PARKING));
+      case PAUSE_MESSAGE_CHANGING: ExtUI::onUserConfirmRequired_P(GET_TEXT(MSG_FILAMENT_CHANGE_INIT));
+      case PAUSE_MESSAGE_UNLOAD:   ExtUI::onUserConfirmRequired_P(GET_TEXT(MSG_FILAMENT_CHANGE_UNLOAD));
+      case PAUSE_MESSAGE_WAITING:  ExtUI::onUserConfirmRequired_P(GET_TEXT(MSG_ADVANCED_PAUSE_WAITING));
+      case PAUSE_MESSAGE_INSERT:   ExtUI::onUserConfirmRequired_P(GET_TEXT(MSG_FILAMENT_CHANGE_INSERT));
+      case PAUSE_MESSAGE_LOAD:     ExtUI::onUserConfirmRequired_P(GET_TEXT(MSG_FILAMENT_CHANGE_LOAD));
+      case PAUSE_MESSAGE_PURGE:
+        #if ENABLED(ADVANCED_PAUSE_CONTINUOUS_PURGE)
+          ExtUI::onUserConfirmRequired_P(GET_TEXT(MSG_FILAMENT_CHANGE_CONT_PURGE));
+        #else
+          ExtUI::onUserConfirmRequired_P(GET_TEXT(MSG_FILAMENT_CHANGE_PURGE));
+        #endif
+      case PAUSE_MESSAGE_RESUME:   ExtUI::onUserConfirmRequired_P(GET_TEXT(MSG_FILAMENT_CHANGE_RESUME));
+      case PAUSE_MESSAGE_HEAT:     ExtUI::onUserConfirmRequired_P(GET_TEXT(MSG_FILAMENT_CHANGE_HEAT));
+      case PAUSE_MESSAGE_HEATING:  ExtUI::onUserConfirmRequired_P(GET_TEXT(MSG_FILAMENT_CHANGE_HEATING));
+      case PAUSE_MESSAGE_OPTION:   ExtUI::onUserConfirmRequired_P(GET_TEXT(MSG_FILAMENT_CHANGE_OPTION_HEADER));
+      case PAUSE_MESSAGE_STATUS:
+      default: break;
+    }
+  }
+
+#endif
+
 #if ENABLED(EEPROM_SETTINGS)
 
   #if HAS_LCD_MENU

Marlin/src/lcd/marlinui.h

   #include "../module/printcounter.h"
 #endif
 
-#if BOTH(HAS_LCD_MENU, ADVANCED_PAUSE_FEATURE)
+#if ENABLED(ADVANCED_PAUSE_FEATURE) && EITHER(HAS_LCD_MENU, EXTENSIBLE_UI)
   #include "../feature/pause.h"
   #include "../module/motion.h" // for active_extruder
 #endif
     static inline bool use_click() { return false; }
   #endif
 
-  #if BOTH(HAS_LCD_MENU, ADVANCED_PAUSE_FEATURE)
+  #if ENABLED(ADVANCED_PAUSE_FEATURE) && EITHER(HAS_LCD_MENU, EXTENSIBLE_UI)
     static void pause_show_message(const PauseMessage message, const PauseMode mode=PAUSE_MODE_SAME, const uint8_t extruder=active_extruder);
   #else
     static inline void _pause_show_message() {}